Mercedes C32 AMG options at Tyres.co.uk include the Michelin Pilot Sport 5 and Goodyear Eagle F1 Asymmetric 6, 225/45 ZR17 front and 245/40 ZR17 rear, respectively. These are the original staggered fitments for the W203. Make sure the load index and Y speed rating match the placard and registration prior to purchase.
You will find a tyre pressure and information chart in the fuel filler flap of the Mercedes C32 AMG. You must check the tyre sidewalls for the C32 AMG, as the W203 C32 AMG features different front and rear fitments. The placard of the approved measurements, pressures, and loading conditions is also listed here.
You are not required to replace all four tyres on the Mercedes C32 AMG. You can replace the tyres as an axle pair and still maintain the original staggered front to rear. As a rear wheel drive vehicle, the C32 AMG does not have an all wheel drive (4MATIC) version, so there are no matching tyre requirements; when two new tyres are fitted, UK safety guidance is to position them on the rear axle.